Owfeel DC 12V Two Transmitter 2X 1 Channel Smart Wireless Remote Control Switch Inching Self-Locking Black Round Transmitter 1.Applies to: remote control of the on and off of pump, machine-tool, LED lights and other Civil and industrial supporting remote areas. 2.Wireless coding technology, no direction, switch without disturbing each other 3.Using large-capacity relay, can control appliances and equipment of more than 1000W 4.Two channels of output, the output can be independent, but also non locking and interlocked 5.Can switch the working mode between inching, self-locking and interlocked